Apple's Heart Study Is the Biggest Ever, But With a Catch
b"Last November, Apple Watch owners began receiving recruitment emails from Apple. The company was looking for owners of its smartwatch to participate in the Apple Heart Study\\u2014a Stanford-led investigation into the wearable's ability to sense irregular heart rhythms. Joining was simple: Install an app and wear your watch.\\nLearn more about your ad choices. Visit podcastchoices.com/adchoices"